Nice game. I like the idea of the "attack strength" cycle and how wrong attacks change enemies into different ones. I guess if you gradually introduced individual attacks and enemies to the player, you could add more types of enemies and combinations. It would be then like these "combine elements and get new" games, but with attacking :D
I was always confused with the controls. I wanted to join two attacks, but I turned or vice versa. I think splitting turning controls from attack controls would help a lot, but that was not possible in the jam...